I would like to see something like a custom picture folder that the sims could pull pictures from when painting. I think it would be nice to have your sim paint a portrait of your family, your pet, etc. that you could hang in your sim home.
Oh yes! I want my Sim to paint a portrait of my cat.
EDIT: I want to see the following desserts added to the Sim menu:
-Cupcakes
-Brownies (I think Teens-Elders should learn to make them on the big stove)
-Dirt Cups (a quick meal, kids can prepare by themselves)
-Blondies (they're yellow cake-like brownies)
-Cakes other than birthday cakes.
If I missed any desserts on the list that should be added to the Sim Menu let me know. Also, I think our Sims should be able to lick the spoon/bowl, of batter and dough of the following desserts I listed above, and get sick from eating too much, (Nasous moodlet: X isn't feeling so hot. You might want to keep him/her near a bathroom *from too much batter/dough* Sugar Rush, and Great meal)
Back to my cake idea. I think that fruit cake should be included, as a dish your Sim at a high enough cooking level can serve to their enemies, or townies they just don't like that are elderly snobs and/or adults or younger for whatever reason, since fruitcake is the most despised cake in real life. Elders (minus elderly snobs) can get a positive moodlet and enjoy fruitcake. So for elderly Sims, it could be their own little meal, they can enjoy and get a positive moodlet, the same way as adults or younger enjoy the Pemmican dried food: They will get a positive moodlet from eating the fruitcake, while the elderly snobs, and adults or younger (of all traits), will get a negative moodlet from eating fruitcake.